Journal article
The effect of temperature on the radial distribution function for iron in native horse spleen ferritin
Physica B: Condensed Matter, Vol.208-209, pp.545-546
1995
Abstract
Iron K-edge X-ray absorption spectra were recorded for a sample of freeze-dried horse spleen ferritin over a range of temperatures from 40 to 300 K. Gaussian-type radial distribution functions were fitted to the data from all temperatures simultaneously and the obtained mean-square relative displacements σ2 (EXAFS Debye-Waller factors) were fitted using an Einstein model. For iron atoms in the second and/or third coordination shell an Einstein temperature of 330 ± 20 K was obtained. If oxygen was assumed in the second or third shell, its Einstein temperature was 460 ± 20 K. This indicates that the core of ferritin may have a somewhat more rigid structure than those of previously studied ferritin analogues (polysaccharide iron complexes).
Details
- Title
- The effect of temperature on the radial distribution function for iron in native horse spleen ferritin
- Authors/Creators
- K.R. Bauchspieβ (Author/Creator)T.G. St Pierre (Author/Creator)J. Webb (Author/Creator)
- Publication Details
- Physica B: Condensed Matter, Vol.208-209, pp.545-546
- Publisher
- Elsevier B.V.
- Identifiers
- 991005543687607891
- Copyright
- © 1995 Published by Elsevier B.V.
- Murdoch Affiliation
- School of Mathematical and Physical Sciences
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 1 Clinical & Life Sciences
- 1.184 Physiology & Metals
- 1.184.573 Iron Metabolism
- Web Of Science research areas
- Physics, Condensed Matter
- ESI research areas
- Physics